gli·o·blas·to·ma  (glē'ō-blā-stō'mə, glī'-)  n. pl. gli·o·blas·to·mas or gli·o·blas·to·ma·ta (-mə-tə) A malignant tumor of the central nervous system, usually occurring in the cerebrum of adults. [gli(a) + blastoma.] |
glioblastoma gli·o·blas·to·ma (glē'ō-blā-stō'mə, glī'-)
n.
A glioma consisting chiefly of undifferentiated anaplastic cells frequently arranged radially about an irregular focus of necrosis, usually occurring in the cerebrum of adults. Also called grade IV astrocytoma.